Reuters
By Joseph Ax and Tim Reid PRINCETON, N.J./SANTA MONICA, Calif. (Reuters) – A COVID-19 surge ignited in parts of the United States by the highly contagious Delta variant and vaccine hesitancy has led to new mask mandates and deep confusion among some people about which guidance to follow. In Los Angeles County, leaders have reinstated an indoor mask mandate, even for the fully vaccinated. Officials in Houston and New Orleans also raised coronavirus alert levels this week and told people to mask up. In Florida, however, Governor Ron DeSantis said on Thursday children will not be required to wear…